Charge removal apparatus and image forming system

The image forming system addresses unintentional maintenance detection interruptions in noncontact charge-removal units by incorporating a controller and display unit to ensure timely maintenance, thereby preventing sheet attachment due to deteriorated performance.

US20260169411A1Pending Publication Date: 2026-06-18CANON KK
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
CANON KK
Filing Date
2025-12-12
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Unintentional interruption of maintenance detection processes for noncontact charge-removal units in image forming systems leads to potential sheet attachment due to deteriorated charge removal performance, which can be caused by user error in detecting when maintenance is necessary.

⚗Method used

An image forming system with a noncontact charge-removal unit that includes an electrode portion, a controller for detecting maintenance necessity, and a display unit to indicate the detection process, ensuring reduced chances of unintentional interruptions.

🎯Benefits of technology

The system effectively reduces the likelihood of unintentional maintenance detection process interruptions, maintaining optimal charge removal performance by providing a visual indication of maintenance needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

An image forming system includes an image forming unit, a noncontact charge-removal unit, a controller, and a display unit. The image forming unit forms an image on a sheet. The noncontact charge-removal unit removes a charge on the sheet, on which the image has been formed, in a noncontact state. The noncontact charge-removal unit includes an electrode portion that generates an ion. The controller performs a detection process of detecting whether maintenance of the electrode portion is necessary. The display unit indicates that the detection process is being performed.
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